<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title>My web site</title>
		<style type="text/css">
			body{
				margin: 0;
				padding: 0;
			}
			.box{
				text-align: center;
				margin-top: 43px;
			}
			.nav{
				position: fixed; 
				top:0;
				left: 200px;
				
			}
			.ad1{
				position: fixed;
				left:0;
				top: 65px;
			}
			.ad2{
				position: fixed;
				right: 0;
				top:65px;
			}
			
			
		</style>
	</head>
	<body>
		<div class="content">
			<div class="nav"><img src="r1_c1.png" alt=""></div>
			<div class="box"><img src="box.png" alt=""></div>
			<div class="ad1"><img src="r2_c1.png" alt=""></div>
			<div class="ad2"><img src="r2_c2.png" alt=""></div>
		</div>
	</body>
</html>